Controls
UNT-PRC001-EN
31
ZN.010 Control Board
ZN.510 Control Board
Control Options
UniTrane
®
fan-coils are available with four different control options:
• Manual three-speed fan switch
• Tracer ZN.010
• Tracer ZN.510
• Tracer ZN.520
Manual Fan Mode Switch
Model Number Digit 30 = A and Digit 31 = D or K
The manual fan mode switch is available for fan-coil units that do not have Trane
factory-mounted control packages. This four-position switch (off, high, medium,low)
allows manual fan mode selection and is available unit or wall mounted. The unit-
mounted option (Digit 31 = D) operates on line voltage. The wall-mounted option (Digit
31 = K) is low-voltage and has three 24 volt relays using a factory-wired transformer
and relays to control the fan motor.
Tracer
®
Controls
The Tracer family of controllers, ZN.010; ZN.510; and ZN.520, offer the combined
advantages of simple and dependable operation with the latest Trane-designed
controller. Standard control features include options normally available on more
elaborate control systems. All control options are available factory-configured or can
be field-configured using Rover
™
service software. For more detailed information, refer
to the Trane publication,
CNT-IOP-1 or CNT-IOP-2.
Tracer ZN.010
Model Number Digit 30 = E
Tracer ZN.010 is a stand-alone microprocessor controller.
Tracer ZN.510
Model Number Digit 30 = F
ZN.510 can be used as either a stand-alone or communicating microprocessor
controller.
Tracer ZN.520
Model Number Digit 30 = G
The ZN.520 controller can be used in a stand-alone application or as part of a Trane
Integrated Comfort
™
System (ICS).
In the stand-alone configuration, ZN.520 receives operation commands from the zone
sensor and/or the auto changeover sensor (on auto changeover units). The entering
water temperature is read from the auto changeover sensor and determines if the unit
is capable of cooling or heating. The zone sensor module is capable of transmitting the
following information to the controller:
• Timed override on/cancel request
• Zone setpoint
• Current zone temperature
• Fan mode selection (off-auto-high-med-low)
For optimal system performance, fan-coil units can operate as part of an Integrated
Comfort™ System (ICS) building automation system controlled by Tracer Summit
®
.
The controller is linked directly to the Summit control panel via a twisted pair communi-
cation wire, requiring no additional interface device (i.e., a command unit). The Trane
ICS system can monitor or override ZN.520 control points. This includes such points as
temperature and output positions.
Rover
™
Service Software
This windows-based software package option allows field service personnel to easily
monitor, save, download, and configure Tracer controllers through a communication
link from a portable computer. When connected to the communication link, Rover can
view any Tracer controller that is on the same communication link.
Fan Speed Switch
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